£120.00
In stock (can be backordered)
Upgrade your BMW’s fuel system with this BMW M50D Rail Sensor, designed to improve fuel delivery accuracy, throttle response, and overall engine performance. This part is ideal for vehicles equipped with the N57 engine looking for increased reliability and refined power delivery.
As rail sensors age, they can cause inconsistent fuel pressure, poor throttle response, and long-term engine issues. Replacing it with this genuine upgrade ensures:
Optimized fuel injection and smoother throttle control
Better fuel economy and combustion efficiency
Increased engine lifespan by preventing stress from incorrect fuel pressure
Fewer long-term repair costs
Compatible with a wide range of N57-powered models (see additional information)
Precision control over fuel delivery for improved driveability
Durable design built to handle high pressure and heat
This sensor must be mapped to your ECU before the engine is started. Failure to do so can cause engine damage.
Additionally, 2mm may need to be shaved off the fuel rail to ensure correct fitment.
Need correct calibration? We offer an M50D sensor calibration service – click to learn more or purchase.
We work alongside a trusted garage who offers fitment for this item at approximately £180 + VAT for M57 engines and £80 + VAT for N57 Engines. (Prices may vary dependant on exact vehicle)
For both your protection and ours, all items are security marked before dispatch.
For details regarding compatibility, shipping, returns, or what to do if your item arrives damaged, please refer to the Additional Information section on this page
Not sure if this part is the right fit for your BMW?
We’re happy to help! ✉️ Simply email us at [email protected] with your vehicle registration or VIN, and we’ll quickly confirm compatibility before you order.
| Compatibility | 5 Series |
|---|---|
| Models | M550dx |
| Engine Codes | N57X |
| Note | This is the original factory fitment for the above models, but it may also be suitable for other BMW vehicles using the N57 or N57S engine. |
| Important Installation Warning | This sensor must be coded (mapped) into the vehicle before the engine is started. |
| Shipping | Dispatched within 1 working day via a 48-hour courier service (tracked & insured). |
| Returns | We accept returns within 30 days of purchase. |
| Damaged Items | If your item arrives damaged, please contact us as soon as possible. To help us resolve the issue quickly, we ask that you: Take clear photos of the item, visible damage, original box, interior packaging, and shipping label Retain all original packaging, as it may be required for the claim process Refunds or replacements will be issued once the item is returned and inspected. |
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